Program Overview and Operations Plan - Storm Prediction Center ...

Deterministic Model Day 1 Precipitation Verification Form
Spring Program 2003
GEOGRAPHIC REGION:
(Defined by WRF3 domain)
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I. Data and Evaluation Instructions
For each of the following 12z models provide a subjective evaluations of the model forecast accuracy for total
precipitation during the 18-21z and 21-0z periods.
1. From the NSSL WRF3 web page, estimate the 3-letter station ID near the center point of the WRF3 domain.
2. In window 1, load the sfp file SPRING_PGM_radar~BREF03 found in the local group
a. set the time window from 18-03z;
b. click on MAP, CUSTOM, and enter the 3-letter ID in GAREA , and accept.
3. In window 2 load the Eta12 3-hrly precipitation fcst for the 18-03z time period
a. Click on MAP, CUSTOM, and enter the same 3-letter ID in GAREA, accept.
b. Click on apply settings, loops 3-8.
c. Load the Eta12
4. Load EtaKF, NMM, WRF12, and WRF3 3-hrly total precipitation fcsts for the 18-03z period in windows
3, 4, 5, and 6.
5. Load WRF12 and WRF3 1-hrly total precipitation fcsts for the 18-03z period in windows 7 and 8.
6. In the other monitor in window 1, load the spf file SPRING_PGM~visible~radar3~radar1 found in the
local group.
a. Click on MAP, CUSTOM, enter the same 3-letter ID in GAREA, apply to all loops, and accept.
b. For each loop in windows 1-3, set the time frame from 18-03z
c. Click on load
This will result in the following NAWIPS graphic displays:
Left Monitor
Right Monitor
Window 1 visible satellite 3-hrly radar
Window 2 3-hrly radar Eta12 3-hrly tot pcpn
Window 3 1-hrly radar EtaKF 3-hrly tot pcpn
Window 4
NMM 3-hrly tot pcpn
Window 5
WRF12 3-hrly tot pcpn
Window 6
WRF3 3-hrly tot pcpn
Window 7
WRF12 1-hrly tot pcpn
Window 8
WRF3 1-hrly tot pcpn
This display arrangement facilitates visual comparison by forecast period between different model forecasts,
and between model forecasts and radar by toggling between different frames on the same monitor. In addition,
Aside-by-side@ comparison can also be conducted. Now compare the model precipitation forecasts with onehourly
radar reflectivity images valid during each model forecast period.
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